Technical Description

A vulnerability has been identified in Microsoft Outlook and Microsoft Exchange, which could be exploited by remote attackers to execute arbitrary commands. This flaw is due to a buffer overflow error when decoding TNEF (Transport Neutral Encapsulation Format) MIME attachments, which could be exploited by remote attackers to take complete control of an affected system when a user opens or previews a specially crafted TNEF email message or when the Microsoft Exchange Server Information Store processes the malicious message.

Affected Products

Microsoft Office 2000 Service Pack 3
Microsoft Outlook 2000
Microsoft Office XP Service Pack 3
Microsoft Outlook 2002
Microsoft Office 2003 Service Pack 1
Microsoft Office 2003 Service Pack 2
Microsoft Outlook 2003
Microsoft Exchange Server 5.0 Service Pack 2
Microsoft Exchange Server 5.5 Service Pack 4
Microsoft Exchange 2000 Server Pack 3 (with Post-Service Pack 3 Update Rollup)

Solution

Apply patches :
http://www.microsoft.com/technet/security/Bulletin/MS06-003.mspx

References

http://www.vupen.com/english/advisories/2006/0119
http://www.microsoft.com/technet/security/Bulletin/MS06-003.mspx

Credits

Vulnerability reported by John Heasman and Mark Litchfield

ChangeLog

2006-01-10 : Initial release

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